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All the swiming dinosaurs that ever ruled the Earth.
Elamosaurus Ophthalmosaurus Tylosaurus Plesiosaurus mosasaurus
| The swiming. |
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| All the swiming dinosaurs. |
Fact: Mosasaurus were the first group of extinct reptile known to science.
Elamosaurus had seventy-two neck bones, more than any other animal in Earth's history.
Ophthalmosaurus may have been able to dive almost a mile (1.6 km) down in the water while chasing after its food.
A fossil of a giant sea turtle has been found with a flipper bitten off-probably by a Tylosaurus
| Plesiosaurus |
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| A Plesiosaurus basking in the sun |
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